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    1

    2 (GPS)

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    1. ---2. ---

    3. --

    -

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    1. (Series Name and MapScale) THAILAND 1:50,000

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    2. (Series Number)

    L 7017

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    3. (Sheet Name)

    2

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    4. (Sheet Number)

    (MapIndex)

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    5. (Map Scale)

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    6. (Legend) (Symbol)

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    7. (Note)

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    8. (Diagram and Index)

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    9. (Grossary) 2

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    10. (Grid Reference Box)

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    11. (Stock NO.)

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    5 1) 2)

    3) 4) 5)

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    1/50,000 1:50,000

    : =

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    (Coordinate System)

    --

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    (Geographic Coordinate)

    Lines of Latitude

    Lines of Longitude

    meridians

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    (Geographic Coordinate)

    5 30 45 N 100 20 30 E

    1:50,000 15 x 15

    15 1

    (

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    (GeographicCoordinate

    )

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    UTM Universal

    Transverse Mercator coordinate System)

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    UTM Universal

    Transverse Mercator coordinate System)

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    UTM Zone

    5 - 21 97 - 106 2 Zone 47 Zone 48

    47 96-102 99 48 102-108

    105

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    UTM Zone

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    UTM Zone

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    UTM Zone

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    UTM

    UTM UTM

    ZONE UTM

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    (Reference Datum)

    (Reference Datum) (reference system) (geodetic network)

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    (Reference Datum)

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    (Reference Datum)

    2

    Indian 1975 1:50000 L7017 WGS 1984 1:50000 L7018

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    1. (Geographic Coordinate) 2

    : 60 = 1 60 = 1

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    ( )

    8 00 00 100 15 00

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    2. UTM (UTM Grid Coordinate)

    ( X ) ( Y ) 2 2

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    25

    0

    25

    0 1 2 3 4 5 6 7 8 9

    9

    8

    7

    6

    5

    4

    3

    2

    1

    0

    UTM () X = 639250 Y = 985250

    1

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    A

    1:50,000

    2 ..2 ..

    .A1.38..

    0.68..

    (X)= 797000 +

    0.68/2

    1000

    = 797340 E

    (Y)= 1605000 +

    1.38/2

    1000

    = 1605690 N

    2

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    1 494949 19618712 498510 19615333 495554 1960375

    4 497112 19609255 498579 1959640

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    (GPS)

    Global Positioning System: GPS

    Global Positioning System .. 2521

    NAVSTAR 24 4 2 20,200

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    GPS 3

    Global Positioning System GPS)

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    1) 3 NAVSTAR (NavigationSatellite Timing and Ranging GPS)

    28 24 4

    Department of Defenses 20,162.81. 12,600 12

    Global Positioning System GPS)

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    2)

    Falcon Air Force Base 5

    Global Positioning System GPS)

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    3)

    Global Positioning System GPS)

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    GPS 4

    GPS

    GPS

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    Space Segment24+ Satellites

    The CurrentEphemeris is

    Transmitted toUsersMonitorStations Diego GarciaAscension Island Kwajalein

    Hawaii Colorado Springs

    GPS ControlColorado Springs

    EndUser

    GPS

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    GPS

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    GPS

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    1. 1:50,000 GPS 1:50,000 L7017 GPS Indians 1975 1:50,000 L7018 GPS WGS 84

    2. GPS

    3. GPS

    GPS

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    GPS

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    GPS

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    GPS

    1. GPS ( + -15 ) GPS

    2.

    1:50,000

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    GPS

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    ID X Y

    1 428993 2109002

    2 429499 2109002

    3 429502 2107994

    4 428999 2107996

    5 428480 2107524

    6 427987 2107990

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    - ()

    1 053-271610 089-9255543E-mail [email protected]

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